US8528881B2 - Pan puller for removing forming pans between joists of a concrete floor - Google Patents
Pan puller for removing forming pans between joists of a concrete floor Download PDFInfo
- Publication number
- US8528881B2 US8528881B2 US12/794,241 US79424110A US8528881B2 US 8528881 B2 US8528881 B2 US 8528881B2 US 79424110 A US79424110 A US 79424110A US 8528881 B2 US8528881 B2 US 8528881B2
- Authority
- US
- United States
- Prior art keywords
- pan
- wheel
- basket
- coupled
- forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
Definitions
- the disclosure relates to concrete joist systems created with standard forming pans. More particularly, the disclosure relates an apparatus for stripping the pans from the concrete joist system once formed.
- Pan joist construction refers to a method of constructing a floor system having a ribbed slab using standard forming pans.
- a frame for the floor is initially installed.
- the frame includes a plurality of spaced forming pans.
- Each forming pan functions as a mold for the creation of a void.
- Each pair of adjacent forming pans enables the formation of a joist therebetween.
- Concrete is then poured into the frame between and over the forming pans to create a slab with integrally formed joists. After the concrete sets, the frame and forming pans are removed.
- the forming pans are removed manually. This process involves one or more individuals prying each pan from the ribbed slab using a pry bar, or other similar device. Once freed from the slab, the forming pan is collected for reuse. Because pan removal is performed manually, this process can significantly increase the time required to construct the floor system. Moreover, pan removal is fraught with safety concerns due to the amount of force that must be applied to pry the forming pans loose.
- the pan puller includes a rotatable wheel having a plurality of teeth adapted to engage and remove the forming pan from the slab due to rotation of the wheel and a basket coupled thereto, the basket adapted to receive and contain the removed forming pan.
- the system includes a forklift powered by a power supply and a pan puller supported thereon.
- the pan puller includes a motor receiving power from the power supply, a wheel driven to rotate by the motor, the wheel having a plurality of teeth adapted to engage and remove the forming pan from the joint, and a basket configured to receive and contain the removed forming pan.
- the method includes rotating a wheel having a plurality of teeth, engaging the forming pan with at least one of the teeth, and removing the forming pan from the slab.
- the method may further include positioning a basket proximate the wheel and receiving the removed forming pan in the basket.
- embodiments described herein comprise a combination of features and characteristics intended to address various shortcomings associated with conventional methods for stripping forming pans from an installed concrete floor system.
- the various characteristics described above, as well as other features, will be readily apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments, and by referring to the accompanying drawings.
- FIG. 1 is a perspective view of an embodiment of a pan puller in accordance with the principles disclosed herein;
- FIG. 2 is a schematic side view of the pan puller of FIG. 1 ;
- FIG. 3 is a schematic top view of the pan puller of FIG. 1 ;
- FIG. 4 is a schematic end view of the pan puller of FIG. 1 ;
- FIG. 5 is an enlarged view of the stripper wheel of FIG. 2 ;
- FIG. 6 is a schematic representation of the pan puller of FIG. 1 stripping a forming pan from a concrete floor system.
- the terms “including” and “comprising” are used in an open-ended fashion, and thus should be interpreted to mean “including, but not limited to . . . .”
- the term “couple” or “couples” is intended to mean either an indirect or direct connection. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices and connections.
- the terms “axial” and “axially” generally mean along or parallel to a central or longitudinal axis, while the terms “radial” and “radially” generally mean perpendicular to the central or longitudinal axis.
- pan puller 100 enables removal and containment of forming pans used to create concrete a concrete slab floor with integral joists.
- Pan puller 100 includes a pan stripper assembly 105 , a pan catcher assembly 110 , and a stripper support assembly 115 .
- pan puller 100 further includes two forklift guides 120 .
- forklift guides 120 extend substantially parallel to one another below stripper support assembly 115 and pan catcher assembly 110 .
- Each forklift guide 120 is tubular, enabling the fork of a forklift to be received therein. With forks inserted into guides 120 , pan puller 100 may then be moved by the forklift to a desired location and supported while pan puller 100 is utilized to remove forming pans from the ribbed slab.
- pan stripper assembly 105 enables removal of the forming pans from the ribbed slab. As shown in FIGS. 2 through 4 , pan stripper assembly 105 includes a stripper wheel 125 , a wheel shaft 130 , two bearings 135 , a gearbox 140 , and a motor 145 .
- Wheel shaft 130 is cylindrical in shape and has two opposing ends, each end supported by one bearing 135 .
- Shaft 130 is rotatable relative to bearings 135 in a direction 155 , best illustrated in FIG. 2 .
- Stripper wheel 125 is coupled about shaft 130 and rotatable with shaft 130 .
- Motor 145 is an electric DC motor and preferably powered by the same source which powers the forklift supporting pan puller 100 .
- Gearbox 140 is coupled mechanically between motor 145 and shaft 130 and electrically coupled to motor 145 .
- the combination of motor 145 and gearbox 140 provides desired levels of rotational speed and torque to shaft 130 , and thus stripper wheel 125 .
- the combination of motor 145 and gearbox 140 rotates shaft 130 at a speed of approximately 5 revolutions per minute (RPM) with up to 1,400 ft-lbs of torque.
- motor 145 is a 12 volt DC motor manufactured by Baldor Electric Company, headquartered at 5711 R. S. Boreham, Jr. Street, Fort Smith, Ark. 72901.
- gearbox 140 is a K Series, Right Angle Helical/Bevel gear drive manufactured by Stober Drives Inc., a division of Stober Antriebstechnik GmbH, headquartered in Pforzhiem, Germany.
- stripper wheel 125 has a circular body 160 with an outer surface 165 and a plurality of teeth 170 extending therefrom.
- body 160 and teeth 170 are integral, formed from a single piece of material by methods such as but not limited to laser cutting.
- Each tooth 170 has a front face 175 , a rear face 180 , both faces 175 , 180 defined with respect to rotation direction 155 , and a tip 185 located therebetween.
- the angle 190 between outer surface 165 of body 160 and front face 175 of tooth 170 is preferably acute. This enables tips 185 of teeth 170 to engage or “catch” an edge of an installed forming pan when wheel stripper 125 rotates in direction 155 . Once engaged with, or caught on, the forming pan, stripper wheel 125 has sufficient torque to pull and remove the forming pan from the ribbed slab.
- pan catch assembly 110 receives and contains the forming pan once removed by pan stripper assembly 105 .
- pan catch assembly 110 includes a pan 195 with a plurality of vertical and angled posts 200 , 205 , respectively, coupled thereto.
- Pan 195 includes a plurality of horizontally-extending posts 210 coupled between two posts 215 extending normally thereto. Posts 210 are positioned relative to each other such that the spacing 220 between each pair of adjacent posts 210 , best viewed in FIG. 3 , is too small to allow a forming pan to pass therebetween, thus preventing the forming pans from falling through pan 195 and posing a safety hazard during operation of pan puller 100 .
- Vertical posts 200 are coupled to the outermost posts 210 of pan 195 and extend substantially normally relative to the outermost posts 210 .
- Angled posts 205 are coupled to the post 215 distal pan stripper assembly 105 and extend at an angle 225 relative to a horizontal plane 230 .
- Pan 195 with posts 200 , 205 coupled thereto form a basket 240 with pan 195 functioning as the base or bottom of basket 240 and posts 200 , 205 defining sides of basket 240 extending upward its base.
- Basket 240 receives and contains the forming pans once removed from the ribbed slab by pan stripper assembly 105 .
- each post 205 has a lower end, or foot, 235 that enables pan puller 100 to be positioned on the ground in a stable orientation when not in use.
- Stripper support assembly 115 supports pan stripper assembly 105 such that wheel stripper 125 is positioned at the proper location relative to pan catch assembly 110 .
- stripper support assembly 115 includes two shaft support members 245 , a motor support member 250 , three coupling members 255 , 260 , and at least four supports or feet 265 .
- Shaft support members 245 extend substantially vertically, each support member 245 coupled to and supporting one bearing 135 and an end of shaft 130 inserted therein. Together support members 245 support bearings 135 , shaft 130 , and stripper wheel 125 .
- motor support member 250 extends substantially vertically to support motor 145 and gearbox 140 with gearbox 140 coupled to the upper end of member 250 and motor 145 suspended below gearbox 140 , as shown.
- Coupling members 255 , 260 enable coupling of support members 240 , 245 to basket 240 such that basket 240 is able to receive forming pans removed by stripper wheel 125 .
- coupling members 255 extend substantially parallel to each other and are coupled between the lower end of one shaft support member 245 and basket 240 .
- Member 260 extends substantially normally between members 255 and is coupled to the lower end of motor support member 250 .
- forklift guides 120 are coupled to coupling members 255 such that guides 120 extend substantially normally to members 255 and straddle the center of gravity of pan puller 100 . This enables pan puller 100 to remain in a stable orientation when raised by a forklift.
- Feet 265 are coupled to members 255 and extend vertically downward therefrom. Feet 265 of stripper support assembly 115 and feet 235 of pan catcher assembly 110 enable pan puller 100 to be positioned on the ground in a stable and substantially horizontal orientation when not in use.
- pan puller 100 During operation of pan puller 100 , stripper wheel 125 experiences loads due to engagement of teeth 170 with the forming pans. The loads are transferred through stripper wheel 125 to other components of pan puller 100 . To enable pan puller 100 to withstand these loads without excessive deformation and remain both stable and operational, pan puller 100 further includes a plurality of flanges 270 and bracing 275 that provide additional support to components previously described.
- two flanges 270 are coupled between motor support member 250 and coupling member 260 to strengthen the connection between members 250 , 260 and prevent excessive deformation of member 250 relative to member 260 due to loads from wheel stripper 125 .
- Additional flanges 270 are similarly coupled between shaft support members 245 and coupling members 255 and between motor support member 250 and gearbox 140 .
- Bracing 275 is coupled between shaft support members 245 just below motor 145 to further stabilize members 245 .
- pan puller 100 prior to operation of pan puller 100 , forks of a forklift 300 , represented schematically, are inserted into forklift guides 120 of pan puller 100 , and motor 145 is connected to a power source.
- the power source is that also powering forklift 300 .
- the forklift power supply is a battery located on forklift 300 .
- the battery powers both forklift 300 and pan puller 100 .
- Pan puller 100 is then moved by forklift 300 to a desired position proximate a forming pan 305 to be removed from a ribbed slab 310 of a floor system 315 .
- pan puller 100 When in the desired position, pan puller 100 is actuated to rotate stripper wheel 125 . As stripper wheel 125 rotates, forklift 300 is moved closer to forming pan 305 to enable teeth 170 ( FIG. 5 ) of stripper wheel 125 to engage or “catch” an edge 320 of forming pan 305 and pull pan 305 from ribbed slab 310 . Once free of slab 310 , forming pan 305 falls into basket 240 where it remains until forming pan 305 may be removed from basket 240 for storage and/or reuse. After forming pan 305 is safely received in basket 240 , pan puller 100 is repositioned beneath the next forming pan to be removed, and the removal process is repeated. When basket 240 is full, pan puller 100 may be relocated to enable basket 240 to be emptied.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/794,241 US8528881B2 (en) | 2010-06-04 | 2010-06-04 | Pan puller for removing forming pans between joists of a concrete floor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/794,241 US8528881B2 (en) | 2010-06-04 | 2010-06-04 | Pan puller for removing forming pans between joists of a concrete floor |
Publications (2)
Publication Number | Publication Date |
---|---|
US20110297902A1 US20110297902A1 (en) | 2011-12-08 |
US8528881B2 true US8528881B2 (en) | 2013-09-10 |
Family
ID=45063771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/794,241 Expired - Fee Related US8528881B2 (en) | 2010-06-04 | 2010-06-04 | Pan puller for removing forming pans between joists of a concrete floor |
Country Status (1)
Country | Link |
---|---|
US (1) | US8528881B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481078B (en) * | 2016-11-22 | 2018-08-28 | 中国三冶集团有限公司 | A kind of template clears up automatically, painting device and method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1509253A (en) * | 1924-01-02 | 1924-09-23 | Raymond C Phelps | Concrete-floor form |
US2954596A (en) * | 1957-06-05 | 1960-10-04 | Mcclure | Apparatus for forming concrete structures |
US20040050001A1 (en) * | 2002-09-11 | 2004-03-18 | Williams Jonathan P. | Building foundation with unique slab and wall assembly, external sump, and void retention dam |
US7108449B1 (en) * | 2002-06-14 | 2006-09-19 | Allen Engineering Corporation | Method and apparatus for acoustically matched slip form concrete application |
US7131239B2 (en) * | 2002-04-09 | 2006-11-07 | Williams Jonathan P | Structural slab and wall assembly for use with expansive soils |
-
2010
- 2010-06-04 US US12/794,241 patent/US8528881B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1509253A (en) * | 1924-01-02 | 1924-09-23 | Raymond C Phelps | Concrete-floor form |
US2954596A (en) * | 1957-06-05 | 1960-10-04 | Mcclure | Apparatus for forming concrete structures |
US7131239B2 (en) * | 2002-04-09 | 2006-11-07 | Williams Jonathan P | Structural slab and wall assembly for use with expansive soils |
US7108449B1 (en) * | 2002-06-14 | 2006-09-19 | Allen Engineering Corporation | Method and apparatus for acoustically matched slip form concrete application |
US20040050001A1 (en) * | 2002-09-11 | 2004-03-18 | Williams Jonathan P. | Building foundation with unique slab and wall assembly, external sump, and void retention dam |
Also Published As
Publication number | Publication date |
---|---|
US20110297902A1 (en) | 2011-12-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110212458B (en) | Cable tunnel capable of automatically laying cable | |
CN111997409A (en) | Building is demolishd and is used laborsaving crushing apparatus of floor | |
US8528881B2 (en) | Pan puller for removing forming pans between joists of a concrete floor | |
EP3181802A1 (en) | Device and method for the movement and mutual assembly of segments of an excavation battery | |
CN108222634A (en) | A kind of anti-skidding concrete wire pole | |
CN210609410U (en) | Supervision monitoring device | |
CN207538580U (en) | A kind of drilling machine enclosure device for geotechnical investigation | |
CN211158260U (en) | Novel deep well rescue device | |
CN105970786B (en) | Carry overload protection automatically controls cutting machine | |
CN109650038A (en) | A kind of collection transfer device after reinforcing bar cutting | |
CN210713727U (en) | Concrete pouring workbench for house construction | |
US20070107988A1 (en) | Handling The Rotor Of A Rotary Machine | |
CN208835694U (en) | A kind of construction elevator cable bracket | |
CN112696145A (en) | Climbing ladder device with protection mechanism for building construction | |
CN217518133U (en) | Guardrail structure used on building scaffold | |
CN217241501U (en) | Fruit tree picking device | |
CN213297404U (en) | A protector for hydraulic engineering construction | |
CN216690285U (en) | Based on support for metal structure engineering construction | |
CN219019580U (en) | Weeding device | |
CN216408231U (en) | Highway digital construction management device with GPS positioning function | |
CN219031644U (en) | Elevator for construction | |
CN210551389U (en) | Cutting device of rolling pipe | |
CN210674051U (en) | Deep well rescue device | |
CN215592460U (en) | Manual hole digging pile lifting device | |
CN213062664U (en) | Wall defroster is used in municipal administration environmental protection |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: T.A.S. COMMERCIAL CONCRETE CONSTRUCTION, L.L.C., T Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DELLINGER, CHRISTOPHER ANTHONY;REEL/FRAME:024703/0046 Effective date: 20100716 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
AS | Assignment |
Owner name: REGIONS BANK, TEXAS Free format text: SECURITY INTEREST;ASSIGNOR:T.A.S. COMMERCIAL CONCRETE CONSTRUCTION, L.L.C.;REEL/FRAME:036260/0533 Effective date: 20150805 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20210910 |
|
AS | Assignment |
Owner name: T.A.S. COMMERCIAL CONCRETE CONSTRUCTION, L.L.C., TEXAS Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:REGIONS BANK;REEL/FRAME:063642/0811 Effective date: 20230515 Owner name: WHITE OAK COMMERCIAL FINANCE, LLC, AS COLLATERAL AGENT, NEW YORK Free format text: SECURITY INTEREST;ASSIGNOR:TAS CONCRETE CONSTRUCTION, LLC;REEL/FRAME:063642/0054 Effective date: 20230515 |